Mechanical calendar



Feb. 13, 1940. l Q E, TALLY 2,189,821

MECHANICAL CALENDAR 2 Sheets-Sheet 1 Filed Feb. 2, 1939 .g' @af/Taffy IMeamf@ E ATTORNEYS Feb. 13, 1940.

c.' E. TALLY MECHANICAL CALENDAR Filed Feb. 2, 1939 2 Sheets-Sheet 2INVETOR jm@ Y ATTORNEYS Patented Feb. 13, 1940 UNITE* s'rArss VofFFiCF.

-ivmcHANICAL CALENDAR Carl ll. rl'ally, Cleburne, Tex., assgnor of onehalf to John E. Rosenbalm, Cleburne, Tex.

l "lipplicatianrebruary 2, 1939, serial No. 254,277 z claims; (el.io-113) This invention relates to mechanical calen-4 dars and has for ancbject to provide a device of this character which may be easilymanipulated to indicate any desired date in a present, i

[past or future year.

A further object is to provide a mechanical calendar of simpliedconstruction, which will 4 include essentially a manually operable dialand a face plate, the former being provided with seven calendars, eachbeginning with a different day of the week and adapted to beselectivelydisplayed through an opening in a face plate, the face platehaving printed on the outer sur-l face' seven tables containing evenhundreds of years, intermediate years, and the months arranged in theircyclical order and used in conjunction with the calendar months on thedial to nd any desired date.

With the above andfoth'er objects in' viewthe invention consists oicertain novel details of construction and combinations of partshereinafter fully describedand claimed, it being understood'- thatVarious modifications maybe resorted to Within the scope of the appendedclaims without departing from the spirit or sacrificing any ofv Figure 3is a rear elevation of the calendarv with portions broken away.

Figure 4 is an end elevation of the calendar.

Figure 5 isa detail longitudinal sectional viewp taken on the line 5 5of Figure 3.

Figure 6 is a detail longitudinal sectional View takenon the line 6 6 ofFigure 3.' f

Figure 7 is a detail longitudinal sectional View taken on the line 'I-lvof Figure 3.

Figure 8 is a detail `sectional viewtaken on the line 8-8 of-Figure 3. il

Referring nowto the drawings in which-like characters o f referencedesignate similar parts in the various views, I0 designates a face platewhich is substantially rectangular in contour. v The face plate isformed near the upper corners thereof with vertically disposed narrowopenings I I and I 2, which respectively expose slides I3 and I4indicative of months and years. In theupper central portion of the faceplate a relatively large rectangular opening I5 is formed through whicha selected one of seven calendars IB may 4best shown vin Figure l.

- end to the rear face of the face plate.

be exposed, these calendarsbeing printed on a dial 28, bestshown inFigure 3.

The faceplate -is formed with an opening. I8

adjacent'.` to and below its central portion, in

which is `disposed a bolt i9.

Mounted on the bolt, adjacent the head thereof is a washer 26overlapping a bracket 20. Beneath this washer is a smaller washer Eslightly thicker than, and disposed withinan opening in the bracket. Thesmaller washer 9 forms a bearing for the bracket. The bracket and thesmaller washer lie flat on the face. plate lil. This smaller washerpermits the bolt to be tight yet permits the bracket tobe movable. Thelbracket 2U is provided with aper tured ears 2i adapted toreceiveoppositely disposed hinge lugs 22 formed on an operating handle 23.A

r.A substantially arcuate portion ,i of the face l plate iscutlawayfconcentrically with the bolt-` apertureto provide an opening251, best shown in Figure I, a` relatively narrow tongue 25 of the.l

face plate projecting upwardly into the opening to mountthe bolt. Belowthe face plate there is mounted' on the bolt'a relatively thick` spacingWasher ',2'I, and below the washer is mounted another smalll washer 8forming a bearing with-y in' an'axial opening inthe dial 28 andpermittingA the bolt to betight yet permitting the dial-to be loose tobe revolved. The dial 28 has printed or otherwise formedl thereon theseven monthly calendars I6 before referred to.

Each calendar begins withv a different day of,

the week and is adapted to be selectively displayed through the largeopening lil in the face plate.. The calendars I6 are arrangedtangentiallyon the dial, concentric with the bolt.

.Exposed through the arcuate opening 24 in the faceplate are radiallydisposed slots 3| numbered' one toseven consecutively in a counterclockwise direction beginning at'the" upper left portionl of the dial,`each slotbeing formed in the' vdial adjacent a respective calendar It,as

The slots are adapted to lbe selectively engaged by a depending lug 32carried by the handle. A. knob 33 is securedto 'the handle formanpulatingthe handle to selec- `with a plurality of notches :illVadapted to be engaged byV a spring pam-35 which is fixed at one The pawlreleasably holds the dial in position with one of the calendars I6exposed through the opening I5.

Printed,or otherwise formedon the front surface of the face plate areseven tables 36, each table being arranged diametrically opposite arespective slot in the dial and being numbered consecutively in acounterclockwise direction, from one to seven beginning with thelowermost table on the right side .of the face plate as best shown inFigure l.. These tables display even hundreds of years, intermediateyears, and the months arranged in their cyclical order, leap years beingdesignated by four dots arranged as a border around the number of theyear.

The beforementioned slide I3, displaying the names or abbreviations ofmonths, is slidably mounted in a guide bracket 38, best shown in Figure8, having opposed guide loops 39 to receive the angularly bentlongitudinal edges 40 of the slide. The slide may be manuallymanipulated to display the name or abbreviation of any desired monththrough the narrow elongated opening Il.

There are four of the slides i4 each displaying numerals from 1 through9 to zero, as best shown in Figure 1. As best shown in Figure 6, theseslides are mounted in guide brackets 4! formed preferably from a singlesheet of material deformed to provide opposed loops 42 which receive theangularly directed longitudinal edge portions 43 of the slides. Theslides may be manually manipulated to display the numerals of anydesired year, as best shown in Figure 1.

As before stated, each of the calendars I5 begin on a different day ofthe week and each display 31 days. In order to conceal some or all ofthe numerals from 29 to 31 inclusive when a calendar is being used todesignate a particular month having less than 31 days, a slide 44 isprovided with an angularly directed struck up guide loop 45, best shownin Figure 7, which receives a guide ange 46 struck up from the faceplate. The opening 4l' in the face plate from which the guide flange isremovedrreceives a tab 48, best shown in Figure l, through the `mediumof which the slide may be moved transversely of the face plate. Theslide is provided with stepped portions 4Q and 5i] adapted to maskundesired numerals on the calendar when the slide is manipulated bymanual movement of the tab 48.

In the operation vof the device first present the calendar l through theopening l5. Thus the dial is placed in its initial position. The handle23 is thenmoved over the slot opposite the table 36 containing thedesired even hundreds of years, which in the present example would beslot number 2 corresponding to the table number 2 containing the year1900. rThe lug 32 is then engaged in the slot whereupon the handle isswung clockwise to the right until the handle engages the end wall 5l ofthe opening 24. Then the lug 32 on the handle is withdrawn and thehandle is then moved to the slot opposite the table con taining thedesired intermediate year, for example 38, and this will be slot numberG opposite table number 6. The handle is now depressed to engage the lugin this slot and the handle is thereupon swung again to the right untilit engages the end wall 5l of the opening 24. This operation is repeatedas to the desired month, and results in the exhibition in the opening l5of the desired month of that particular year, in the present embodimentthe month of October of the year 1938. If the date being sought is in aleap year. and the date is after February 29, the slot number 2,corresponding to the leap year table number 2 is used, to bring theproper month into display, the slot receiving the lug of the handle andthe handle being swung to the right clockwise until movement is stoppedby contact with the end wall 5| of the opening 24, as previouslydescribed.

From the above description it is thought that the construction andoperation of the invention will be fully understood without furtherexplanation.

What is claimed is:

1. A mechanical calendar comprising, a face plate, a dial rotatablymounted on the face plate, there being seven monthly calendars displayedon the dial concentric with the axis of the dial, each calendarbeginning with a different day of the week, there being a sight openingin the face plate through which the calendars are selectively exposed,there being tables displayed on the face plate containing even hundredsof years, intermediate years, and months arranged in their .cyclicalorder, there being an arcuate opening formed in the face plateconcentric with the axis of the dial and terminating in stop wallslthere being slots formed in the dial opposite respective calendars, andan operating lever swivelled on the face plate at the axis of the dialhaving a projection adapted to be selectively engaged in the slots toturn the dial until the handle engages one of said stop walls forexposing a determinable calendar through said sight opening.

2. A mechanical calendar comprising a face plate formed with relativelynarrow openings adjacent its upper edge, slides back of the face platebea-ring tables indicating months and years respectively to be exposedselectively through said openings, there being a sight opening formed inthe falce plate below and between said first named openings, the faceplate being formed with an arcuate opening below said sight opening, abolt disposed axially in the face plate with respect to said arcuateopening, a bracket on the bolt having hinge ears, a handle having hingelugs engaged in said ears, a dial fixed to the bolt and spaced from therear face of the face plate, there being seven monthly calendarsdisplayed on the dial, each calendar beginning with a diierent day ofthe Week and adapted to be selectively displayed through said sightopening, there being radially disposed slots formed inthe dial adjacentrespective calendars and exposed through said arcuate opening, a lugformed on said handle adapted to be engaged in said slots, the edges ofthe dial being provided with notches adjacent respective calendars, anda spring carried by the face plate releasibly and interchangeable insaid notches, there being formed on the outer surface or the face plateseven tables, said tables being arranged opposite the slots inthe dial,said tables containing even hundreds of years, intermediate years andthe months arranged in their cyclical order.

CARL E. TALLY.

